Does a bicuspid valve confer any advantage over a tricuspid valve in terms of fluid dynamics in a human heart?

02 February 2020 1 3K Report

I've been grappling with this question for a very long time. There must be a logical reason to explain why almost all humans have one bicuspid mitral valve and 3 tricuspid valves in their hearts.

In the same vein of thought,

Are there any reported cases of people having a tricuspid mitral valve? How would they present in the clinic (if at all)?

Theoretically, what do you think would happen if, during a mitral valve replacement, a prosthetic tricuspid valve was used instead of a bicuspid valve?

Amarachi Nwakamma

No.

The mitral valve is also called the bicuspid valve because it contains two leaflets or cusps. ... The tricuspid valve has three leaflets or cusps and is on the right side of the heart. It is between the right atrium and the right ventricle, and stops the backflow of blood between the two.

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